Conn. Gen. Stat. § 47-217
Exception for certain preexisting common interest communities.
(b) If a common interest community created within this state before January 1, 1984, was formed pursuant to a special act of the legislature, it is not subject to the provisions of this chapter unless a majority of the unit owners vote, in conformity with applicable law, to subject such common interest community to the provisions of this chapter. If a majority of the unit owners so vote, the provisions of this chapter apply to such common interest community in the manner described in section 47-216 and this section.